O.T.T.P. is a family run business based in northern Ohio. As passionate collectors, we are devoted to the service and education of our customers helping to preserve an important time in history.

We manufacture and sell replacement cast, stamped, screw machine and electrical parts, and have been since 1979 for Lionel, American Flyer, Marx, NOMA, AMT, IVES, and Dorfan brands.
(We do not carry LGB, Marklin and "HO" parts, except for some American Flyer parts).
For many years we took our parts kit to TCA and public train shows in Ohio, Pennsylvania, New York, Michigan, and Illinois. Now we are able to share our information and our parts catalog via the Internet. .

Lionel and other manufacturers depended on their authorized service stations for warranty repairs and to service toy trains for their customers. The factory produced service station bulletins and part lists of available items for use of these service stations. We have collected this data for many years and now use it as the basis for our part numbers.
See our product page for available books, CD’s (copies of original service information and a new item, soon to come…“E-BOOKS”). .

Our part search engine returns illustrations resembling the original Lionel style of drawing, so you may see which items you are purchasing. .

To use our parts searches you will need the makers’ name and model number. (Usually Lionel and American Flyer items are marked with a model number for your reference). .

See our books section for price guides and books on trains. .

Start by browsing our database of parts within our part locator section! .